or you can just extend the o2 sensor farther out of the exhaust not putting the sensor in direct exhaust flow. that way since the exhaust are not flowing directly into the sensor it thinks the cat is doing the job of cleaning the air because it sees less exhaust gases going through the sensor.

or you can just extend the o2 sensor farther out of the exhaust not putting the sensor in direct exhaust flow. that way since the exhaust are not flowing directly into the sensor it thinks the cat is doing the job of cleaning the air because it sees less exhaust gases going through the sensor.